12409322 has 4 divisors (see below), whose sum is σ = 18613986. Its totient is φ = 6204660.

The previous prime is 12409289. The next prime is 12409333. The reversal of 12409322 is 22390421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22390421 = 677 ⋅33073.

It can be written as a sum of positive squares in only one way, i.e., 12397441 + 11881 = 3521^2 + 109^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3102329 + ... + 3102332.

Almost surely, 2^12409322 is an apocalyptic number.

12409322 is a deficient number, since it is larger than the sum of its proper divisors (6204664).

12409322 is an equidigital number, since it uses as much as digits as its factorization.

12409322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6204663.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12409322 is about 3522.6867587113. The cubic root of 12409322 is about 231.5168925346.

Adding to 12409322 its reverse (22390421), we get a palindrome (34799743).

The spelling of 12409322 in words is "twelve million, four hundred nine thousand, three hundred twenty-two".